It is a great annoyance to me that the ports/doors complementing the fences are too unpredictable when approached and thus often difficult to open.
The functioning of the door, specifically how to actually open such a fence port/door, is not intuitive, because you can be in front of a such a port/door and you will not get the option to open it, unless you move around a bit.
This awkward handling of such doors is a general issue with all fence ports/doors I believe.
Such doors shouldn't be difficult to open, not even once.
I would assume that 100% of any door's geometry ought to be suitable for activating the open door animation, or at least the entire half side opposite of the door's hinges.